nervous system

Professor Kingston is interested in understanding the origins of gambling addictions. To study the brain activity of gambling addicts, Professor Kingston tracks oxygen flow in their brains while they engage in online gambling. What method is he most likely using?

• single cell recording

• transcranial magnetic stimulation

• functional magnetic resonance imaging (fMRI)

• magnetoencephalography

• positron emission tomography (PET)

How do dendrites facilitate neuronal communication?

• provide structural support for neuron

• select type of neurotransmitter released

• allow neuron to receive multiple inputs from other neurons

• increase speed of action potentials

• both a and d

Marcus works in the laboratory of Dr. Flores, an expert in squid axon electrophysiology. After taking a reading from a recording electrode placed within a squid axon, Marcus comments to Dr. Flores that the squid axon is at its resting potential. What measurement did Marcus take with the recording electrode?

• -70mV

• -40mV

• 0 mV

• +40mV

• +70 mV

Synaptic communication between two neurons usually occurs via ____.

• direct contact

   

• molecular transduction

• chemical messengers

   

• electrical signaling

   

• magnetic surface changes

The arrival of a(n)____ causes synaptic vesicles to be released from their protein anchors, allowing the vesicles to fuse with the cell membrane and release ____ into the synaptic cleft.

• action potential; neurotransmitters

• neurotransmitters; an electrical charge

• action potential; an electrical charge

• neurotransmitter; more neurotransmitters

• Axon terminals; ions

Which of the following is the strongest analogy to explain the relationship between receptors and neurotransmitters?

• needle and thread

• bat and ball

• lock and key

• boat and sail

• television and remote

The nervous system is divided into two major components: the ____ and the ____.

• autonomic nervous system; somatic nervous system

• central nervous system; somatic nervous system

• central nervous system; peripheral nervous system

• peripheral nervous system; autonomic nervous system

• autonomic nervous system; central nervous system

What system transmits commands for voluntary movement from the central nervous system to the muscles and brings sensory input back to the CNS for further processing?

• autonomic

• somatic

• parasympathetic

• sympathetic

• cingulate

What is the major function of the spinal cord?

• provides structural support for the trunk of the body.

• serve as a major conduit for information flowing to and from the brain.

• sends sensory information from the brain to the peripheral nervous system

• serves as a centralized muscle mass that coordinates intricate muscle movements.

• both c and d

A(n) ____ is a neuron that carries commands from the central nervous system to muscles or glands.

• interneuron

• cerebellar neuron

• sensory neuron

• motor neuron

• autoneuron